Reaction profile

The FDA adverse-event record for ventricular fibrillation

Name: Ventricular fibrillation - FDA Animal Adverse Reaction
Creator: PlainBreed
License: https://open.fda.gov/license/

11 FDA reports name ventricular fibrillation, a lower-volume reaction in the CVM extract (VeDDRA 2427). Plate stamps and neighbourhood peers follow.

#2443 of 2,481
by report volume (all reactions): 11
reports citing this reaction: 100.0%
death-coded share: Dog
most-affected species

Compiled by PlainBreed

Verify with FDA CVM →

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Ventricular fibrillation has 11 reports now versus 11 in that prior snapshot: 0 the same number of (0.0%).

Report change: +0
Death-coded reports: +0
Death-coded share: +0.0 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Ventricular fibrillation changes

FDA AER · VeDDRA plate

Code 2427 VOL-TRACE

VOL-TRACE · DEATH-HOT · BOTTOM-DECILE · PHOTO-FINISH · SPECIES-DOG · DRUG-LEAD · DESK-MID · BOOK-FULL

VOL-TRACE 11 reports
DEATH-HOT 100.0%
BOTTOM-DECILE #2443/2481
PHOTO-FINISH ABNORMAL PANCREATIC S…
SPECIES-DOG Dog · 7
DRUG-LEAD Isoflurane · 4
DESK-MID 7 breeds
BOOK-FULL 8/8 fields

Nearest volume peer: ABNORMAL PANCREATIC SPECIFIC LIPASE (PLI) (±0 reports)

Upper-third death-coded share drives the outcome stamps on this plate; volume band, corpus rank, and co-report peers follow. Not a clinical diagnosis.

Lower-volume neighbourhood around Ventricular fibrillation

Lower-third volume poles plus nearest peers, not a full reaction corpus board reprint.

FDA AER report volume · neighbourhood around Ventricular fibrillation

Ventricular fibrillation: high death-coded share in the FDA AER plate

Signature read: Ventricular fibrillation's 100.0% death-coded share is among the highest in the openFDA reaction corpus. Report volume is lower-third scale: 11 named reports in the openFDA extract. Death-coded share is upper-third: 11 of 11 reports (100.0% of named reports). Nearest volume peer: ABNORMAL PANCREATIC SPECIFIC LIPASE (PLI) (±0 reports). Lead species Dog (7). Lead co-reported drug Isoflurane (4).

Read these counts as reporting volume, not risk: per our methodology, A high death-coded share in FDA filings does not prove causation; co-reporting is voluntary temporal association only. Browse the full reactions index or the about page for how PlainBreed frames FDA CVM extracts.

Species Most Affected

Dog 7

Cat 4

Breeds Most Affected

Domestic Shorthair 3

Spaniel - King Charles Cavalier 2

Boxer (German Boxer) 2

Dog (unknown) 1

Terrier - Yorkshire 1

Siberian Husky 1

Domestic Longhair 1

Associated Drugs

Isoflurane 4

Maropitant Citrate 4

Atipamezole Hydrochloride 2

Dexmedetomidine Hydrochloride 2

Butorphanol 2

Atropine 2

Propofol 2

Robenacoxib 2

Buprenorphine 2

Dexmedetomidine 2

Toceranib Phosphate 2

Trazodone 2

Prednisone 2

Famotidine 2

Gabapentin 2

Meloxicam 1

Epinephrine 1

Ketamine Hydrochloride 1

Cefovecin 1

Methimazole 1

What to do with this reaction

Read how death-coded share differs from a mortality rate before drawing conclusions. Understanding adverse events
Browse the full reaction directory to compare report counts across reaction types. All reactions

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Ventricular fibrillation (#2443 of 2,481 by report volume); death-coded 100.0%. PlainBreed reaction plate · death-coded share stamp 100.0% · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →